Having the energy management system is a good idea for 50 amp connections. Sadly, it won't protect you from a lightening strike. Unplug if a storm is brewing.
I prefer to solve low voltage issues by using an autoformer. The low voltage cutoff is annoying and is set too low in commercial units for my comfort level.
jerseyjim wrote:
IMO, get the best: Progressive Industries 50AMP EMS. (I say "best" because I have one...the portable unit).
For years, I never needed one....then a nearby lightening strike fried my fridge and damaged my transfer switch. $1400.
Researched a bit, found Progressive Industries...50AMP..comes portable or hard wired. I think I paid around $350 for it. Better than another $1400, yes?
Also, Progressive gives a lifetime warranty. The ones from Camping World do not. ((Get the EMS...not just the surge protector.))
Bought it on-line from Tweetys. At the time, they had the best price.